12 terms

Lecture #11
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term for processes in which no heat energy is added or removed, but in which the temperature changes
warm/less dense air (lighter)
rises
cold/denser air (heavier)
sinks
as a parcel of air rises
-it expands (volume changes)
-it comes under less and less pressure as it rises in the atmosphere and thus expands
-as the air expands, the molecular action (kinectic energy) decreases and thus the temperature decreases
expanding air
= temperature decreases
compressing air
= temperature increases
changing the temperature of the air without adding or subtracting heat (simply the result of compressing the air or allowing it to expand)
P (mb) = T ( ° K) x p (kg/m3) x C (2.87)
at the surface as temperature decreases, density and pressure increases; as the temperature increases, air density and pressure decreases